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Continuous Sound Velocity Measurements along the Shock Hugoniot Curve of Quartz
We report continuous measurements of the sound velocity along the principal Hugoniot curve of α quartz between 0.25 and 1.45 TPa, as determined from lateral release waves intersecting the shock front as a function of time in decaying-shock experiments. The measured sound velocities are lower than pr...
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Published in: | Physical review letters 2018-05, Vol.120 (21), p.215703-215703, Article 215703 |
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creator | Li, Mu Zhang, Shuai Zhang, Hongping Zhang, Gongmu Wang, Feng Zhao, Jianheng Sun, Chengwei Jeanloz, Raymond |
description | We report continuous measurements of the sound velocity along the principal Hugoniot curve of α quartz between 0.25 and 1.45 TPa, as determined from lateral release waves intersecting the shock front as a function of time in decaying-shock experiments. The measured sound velocities are lower than predicted by prior models, based on the properties of stishovite at densities below ∼7 g/cm^{3}, but agree with density functional theory molecular dynamics calculations and an empirical wide-regime equation of state presented here. The Grüneisen parameter calculated from the sound velocity decreases from γ∼1.3 at 0.25 TPa to 0.66 at 1.45 TPa. In combination with evidence for increased (configurational) specific heat and decreased bulk modulus, the values of γ suggest a high thermal expansion coefficient at ∼0.25-0.65 TPa, where SiO_{2} is thought to be a bonded liquid. From our measurements, dissociation of the molecular bonds persists to ∼0.65-1.0 TPa, consistent with estimates by other methods. At higher densities, the sound velocity is close to predictions from previous models, and the Grüneisen parameter approaches the ideal gas value. |
doi_str_mv | 10.1103/PhysRevLett.120.215703 |
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The measured sound velocities are lower than predicted by prior models, based on the properties of stishovite at densities below ∼7 g/cm^{3}, but agree with density functional theory molecular dynamics calculations and an empirical wide-regime equation of state presented here. The Grüneisen parameter calculated from the sound velocity decreases from γ∼1.3 at 0.25 TPa to 0.66 at 1.45 TPa. In combination with evidence for increased (configurational) specific heat and decreased bulk modulus, the values of γ suggest a high thermal expansion coefficient at ∼0.25-0.65 TPa, where SiO_{2} is thought to be a bonded liquid. From our measurements, dissociation of the molecular bonds persists to ∼0.65-1.0 TPa, consistent with estimates by other methods. At higher densities, the sound velocity is close to predictions from previous models, and the Grüneisen parameter approaches the ideal gas value.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.120.215703</identifier><identifier>PMID: 29883175</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><subject>Acoustic velocity ; Bulk modulus ; Chemical bonds ; Density functional theory ; Empirical equations ; Equations of state ; Gruneisen parameter ; Hugoniot curves ; Ideal gas ; Mathematical models ; Molecular dynamics ; Predictions ; Quartz ; Silicon dioxide ; Sound ; Stishovite ; Thermal expansion ; Velocity</subject><ispartof>Physical review letters, 2018-05, Vol.120 (21), p.215703-215703, Article 215703</ispartof><rights>Copyright American Physical Society May 25, 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-e2c9e1b215a0d55151b335e561a11d9dd6a9a23ef31231a8b56ad0b674f945c13</citedby><cites>FETCH-LOGICAL-c392t-e2c9e1b215a0d55151b335e561a11d9dd6a9a23ef31231a8b56ad0b674f945c13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29883175$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Li, Mu</creatorcontrib><creatorcontrib>Zhang, Shuai</creatorcontrib><creatorcontrib>Zhang, Hongping</creatorcontrib><creatorcontrib>Zhang, Gongmu</creatorcontrib><creatorcontrib>Wang, Feng</creatorcontrib><creatorcontrib>Zhao, Jianheng</creatorcontrib><creatorcontrib>Sun, Chengwei</creatorcontrib><creatorcontrib>Jeanloz, Raymond</creatorcontrib><title>Continuous Sound Velocity Measurements along the Shock Hugoniot Curve of Quartz</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>We report continuous measurements of the sound velocity along the principal Hugoniot curve of α quartz between 0.25 and 1.45 TPa, as determined from lateral release waves intersecting the shock front as a function of time in decaying-shock experiments. The measured sound velocities are lower than predicted by prior models, based on the properties of stishovite at densities below ∼7 g/cm^{3}, but agree with density functional theory molecular dynamics calculations and an empirical wide-regime equation of state presented here. The Grüneisen parameter calculated from the sound velocity decreases from γ∼1.3 at 0.25 TPa to 0.66 at 1.45 TPa. In combination with evidence for increased (configurational) specific heat and decreased bulk modulus, the values of γ suggest a high thermal expansion coefficient at ∼0.25-0.65 TPa, where SiO_{2} is thought to be a bonded liquid. From our measurements, dissociation of the molecular bonds persists to ∼0.65-1.0 TPa, consistent with estimates by other methods. At higher densities, the sound velocity is close to predictions from previous models, and the Grüneisen parameter approaches the ideal gas value.</description><subject>Acoustic velocity</subject><subject>Bulk modulus</subject><subject>Chemical bonds</subject><subject>Density functional theory</subject><subject>Empirical equations</subject><subject>Equations of state</subject><subject>Gruneisen parameter</subject><subject>Hugoniot curves</subject><subject>Ideal gas</subject><subject>Mathematical models</subject><subject>Molecular dynamics</subject><subject>Predictions</subject><subject>Quartz</subject><subject>Silicon dioxide</subject><subject>Sound</subject><subject>Stishovite</subject><subject>Thermal expansion</subject><subject>Velocity</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpdkE1P20AURUeIioS0fwGNxIaN0_dmMrZniaK2VAqiBdrtaGw_Jw6Oh84HUvrraxSoEKu3OffqvsPYGcIcEeTnH5t9uKWnFcU4RwFzgaoAecSmCIXOCsTFMZsCSMw0QDFhpyFsAQBFXp6widBlKbFQU3azdEPshuRS4HcuDQ3_Tb2ru7jn12RD8rSjIQZuezesedwQv9u4-oFfpbUbOhf5Mvkn4q7lP5P18e9H9qG1faBPL3fGfn39cr-8ylY3374vL1dZLbWIGYlaE1bjaguNUqiwklKRytEiNrppcqutkNRKFBJtWancNlDlxaLVC1WjnLGLQ--jd38ShWh2Xaip7-1A4y9GgBIlIJTP6Pk7dOuSH8Z1RiDqsU8KOVL5gaq9C8FTax59t7N-bxDMs3LzRrkZlZuD8jF49lKfqh01_2OvjuU_kfJ_BA</recordid><startdate>20180525</startdate><enddate>20180525</enddate><creator>Li, Mu</creator><creator>Zhang, Shuai</creator><creator>Zhang, Hongping</creator><creator>Zhang, Gongmu</creator><creator>Wang, Feng</creator><creator>Zhao, Jianheng</creator><creator>Sun, Chengwei</creator><creator>Jeanloz, Raymond</creator><general>American Physical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>20180525</creationdate><title>Continuous Sound Velocity Measurements along the Shock Hugoniot Curve of Quartz</title><author>Li, Mu ; Zhang, Shuai ; Zhang, Hongping ; Zhang, Gongmu ; Wang, Feng ; Zhao, Jianheng ; Sun, Chengwei ; Jeanloz, Raymond</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-e2c9e1b215a0d55151b335e561a11d9dd6a9a23ef31231a8b56ad0b674f945c13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Acoustic velocity</topic><topic>Bulk modulus</topic><topic>Chemical bonds</topic><topic>Density functional theory</topic><topic>Empirical equations</topic><topic>Equations of state</topic><topic>Gruneisen parameter</topic><topic>Hugoniot curves</topic><topic>Ideal gas</topic><topic>Mathematical models</topic><topic>Molecular dynamics</topic><topic>Predictions</topic><topic>Quartz</topic><topic>Silicon dioxide</topic><topic>Sound</topic><topic>Stishovite</topic><topic>Thermal expansion</topic><topic>Velocity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Mu</creatorcontrib><creatorcontrib>Zhang, Shuai</creatorcontrib><creatorcontrib>Zhang, Hongping</creatorcontrib><creatorcontrib>Zhang, Gongmu</creatorcontrib><creatorcontrib>Wang, Feng</creatorcontrib><creatorcontrib>Zhao, Jianheng</creatorcontrib><creatorcontrib>Sun, Chengwei</creatorcontrib><creatorcontrib>Jeanloz, Raymond</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Mu</au><au>Zhang, Shuai</au><au>Zhang, Hongping</au><au>Zhang, Gongmu</au><au>Wang, Feng</au><au>Zhao, Jianheng</au><au>Sun, Chengwei</au><au>Jeanloz, Raymond</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Continuous Sound Velocity Measurements along the Shock Hugoniot Curve of Quartz</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2018-05-25</date><risdate>2018</risdate><volume>120</volume><issue>21</issue><spage>215703</spage><epage>215703</epage><pages>215703-215703</pages><artnum>215703</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>We report continuous measurements of the sound velocity along the principal Hugoniot curve of α quartz between 0.25 and 1.45 TPa, as determined from lateral release waves intersecting the shock front as a function of time in decaying-shock experiments. The measured sound velocities are lower than predicted by prior models, based on the properties of stishovite at densities below ∼7 g/cm^{3}, but agree with density functional theory molecular dynamics calculations and an empirical wide-regime equation of state presented here. The Grüneisen parameter calculated from the sound velocity decreases from γ∼1.3 at 0.25 TPa to 0.66 at 1.45 TPa. In combination with evidence for increased (configurational) specific heat and decreased bulk modulus, the values of γ suggest a high thermal expansion coefficient at ∼0.25-0.65 TPa, where SiO_{2} is thought to be a bonded liquid. From our measurements, dissociation of the molecular bonds persists to ∼0.65-1.0 TPa, consistent with estimates by other methods. At higher densities, the sound velocity is close to predictions from previous models, and the Grüneisen parameter approaches the ideal gas value.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>29883175</pmid><doi>10.1103/PhysRevLett.120.215703</doi><tpages>1</tpages></addata></record> |
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subjects | Acoustic velocity Bulk modulus Chemical bonds Density functional theory Empirical equations Equations of state Gruneisen parameter Hugoniot curves Ideal gas Mathematical models Molecular dynamics Predictions Quartz Silicon dioxide Sound Stishovite Thermal expansion Velocity |
title | Continuous Sound Velocity Measurements along the Shock Hugoniot Curve of Quartz |
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